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C93500 Bronze vs. C85200 Brass

Both C93500 bronze and C85200 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 78% of their average alloy composition in common.

For each property being compared, the top bar is C93500 bronze and the bottom bar is C85200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 15
28
Poisson's Ratio 0.35
0.32
Shear Modulus, GPa 38
40
Tensile Strength: Ultimate (UTS), MPa 220
270
Tensile Strength: Yield (Proof), MPa 110
95

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 160
140
Melting Completion (Liquidus), °C 1000
940
Melting Onset (Solidus), °C 850
930
Specific Heat Capacity, J/kg-K 360
380
Thermal Conductivity, W/m-K 70
84
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
18
Electrical Conductivity: Equal Weight (Specific), % IACS 15
19

Otherwise Unclassified Properties

Base Metal Price, % relative 31
26
Density, g/cm3 9.0
8.4
Embodied Carbon, kg CO2/kg material 3.0
2.8
Embodied Energy, MJ/kg 49
46
Embodied Water, L/kg 350
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
59
Resilience: Unit (Modulus of Resilience), kJ/m3 59
42
Stiffness to Weight: Axial, points 6.3
7.0
Stiffness to Weight: Bending, points 17
19
Strength to Weight: Axial, points 6.9
8.9
Strength to Weight: Bending, points 9.1
11
Thermal Diffusivity, mm2/s 22
27
Thermal Shock Resistance, points 8.5
9.3

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.3
0 to 0.2
Copper (Cu), % 83 to 86
70 to 74
Iron (Fe), % 0 to 0.2
0 to 0.6
Lead (Pb), % 8.0 to 10
1.5 to 3.8
Nickel (Ni), % 0 to 1.0
0 to 1.0
Phosphorus (P), % 0 to 1.5
0 to 0.020
Silicon (Si), % 0 to 0.0050
0 to 0.050
Sulfur (S), % 0 to 0.080
0 to 0.050
Tin (Sn), % 4.3 to 6.0
0.7 to 2.0
Zinc (Zn), % 0 to 2.0
20 to 27
Residuals, % 0
0 to 0.9